KR200183730Y1 - A cellular-phone charger having a function for alarming reception - Google Patents

Abstract

Disclosed is a cellular phone charger having an incoming call notification function for informing a user that a call has been received both visually and audibly by incorporating a cellular phone charging circuit into a character product and driving the character product at the time of incoming call. The power supply supplies power. The call detection unit detects an incoming call to the cellular phone and outputs a call detection signal. The incoming notification unit receives power from the power supply unit and notifies the user that a call has been received in response to the incoming detection signal. When the cellular phone is mounted on the charging cradle by the user, the switching unit performs a switching operation to provide power from the power supply unit to the incoming call detection unit and the incoming call notification unit. Therefore, the user can easily recognize the incoming call through sight and hearing simply by mounting the cellular phone on the charging cradle.

Description

Cell phone charger with incoming call notification {A CELLULAR-PHONE CHARGER HAVING A FUNCTION FOR ALARMING RECEPTION}

The present invention relates to a cellular phone charger, and more specifically, by incorporating a cellular phone charging circuit into a character product and driving the character product at the time of the incoming call, the incoming call can be informed to the user visually and acoustically. It relates to a cellular phone charger with a notification function.

Recently, as cellular phones become widespread, the demand for chargers for charging the batteries of cellular phones is increasing rapidly. Currently, most commonly used chargers are mostly desktop top types.

However, the desktop charger merely performs the function of charging the battery of the cellular phone. Therefore, in order for the user to mount the cellular phone in the charger and receive a call from the outside while charging the battery, the call reception notification function of the cellular phone must be set to a bell mode in which sound is generated. If the user sets the cellular phone's telephone reception function to the vibrate mode in order to prevent noise when the user is in the bell mode in consideration of the surrounding environment, it may occur that the user does not detect that the telephone is received.

The present invention proposed to solve the above-mentioned problem, by incorporating a cellular phone charging circuit in the character goods by driving the character goods at the time of incoming call by receiving a call notification function that can inform the user that the call was received visually and audibly It is an object to provide a cellular phone charger having.

1 is a circuit diagram showing a circuit configuration of a cellular phone charger having an incoming call notification function according to an embodiment of the present invention; And

2 is a view showing an application example of a cellular phone charger having a call notification function according to an embodiment of the present invention shown in FIG.

<Explanation of symbols for the main parts of the drawings>

100: first power supply unit 110: AC power plug

120: power supply circuit 130: DC power plug

140: regulator 210: incoming call detection unit

212: electromagnetic wave detector 214: comparison unit

230, 216, 226: first, second, third switching unit 220: incoming call notification unit

222: driving unit 224: light emitting unit

228: sound generator BAT: second power supply

PCB_ANT: PC Pattern Antenna

Cell phone charger having an incoming call notification function according to the present invention for achieving the above object, the first power supply means for supplying power, and outputting a call detection signal by detecting the incoming call to the cellular phone Incoming call detection means for receiving, receiving incoming power from the first power supply means, informing the user of the incoming call in response to the incoming call detection signal, and the cellular phone by the user to the charging cradle When it is mounted, it comprises a first switching means for performing a switching operation to provide power from the first power supply means to the incoming call detection means and the incoming call notification means.

The cellular phone charger recognizes that a call is received from the outside through an incoming call detection unit for detecting electromagnetic waves, and correspondingly drives a character product such as the rabbit doll through the incoming call notification unit having a motor, a light emitting element, and a speaker system. Notifies the user that a call has been made. Therefore, the user can easily recognize the incoming call through sight and hearing simply by mounting the cellular phone on the charging cradle.

Hereinafter, a cellular phone charger having an incoming call notification function according to an exemplary embodiment of the present invention will be described in more detail with reference to FIGS. 1 and 2.

1 is a circuit diagram illustrating a circuit configuration of a cellular phone charger having an incoming call notification function according to an exemplary embodiment of the present invention, and FIG. 2 has an incoming notification function according to an exemplary embodiment of the present invention shown in FIG. 1. A diagram showing an application example of a cellular phone charger.

1 and 2, a cellular phone charger having an incoming call notification function according to an embodiment of the present invention, the first power supply unit 100 for supplying power, the incoming call to the cellular phone Receiving detection unit 210 for detecting and outputting the incoming detection signal, the first power supply unit 100 receives power from the incoming call in response to the incoming call detection signal to inform the user that the incoming call 220 And, if the cellular phone is mounted on the charging cradle 310 by the user, performing a switching operation to the power from the first power supply unit 100 to the incoming call detection unit 210 and the incoming call notification unit 220 ) Has a first switching unit 230 to provide.

The first power supply unit 100 is connected to an external outlet (not shown) to rectify the AC power input through the AC power plug 110, the AC power plug 110 receives AC power, and outputs the DC power. A power supply circuit 120 for regulating the DC power output from the power supply circuit 120 to output to the first switching unit 230 and the power supply circuit A connection between the controller 120 and the regulator 140 to perform an on / off operation under the control of the user to cut off or conduct the power provided from the power supply circuit 120 to the regulator 140. 1 switch (SW1) and is connected to the output terminal of the power supply circuit 120 has a DC power plug 130 for providing a DC power for charging the cellular phone. In addition, the first power supply unit 100 has the first and second capacitors C1 and C2 for filtering the input and output signals of the regulator 140 to the input terminal and the output terminal of the regulator 140, respectively. It is connected in parallel with and.

The charger may be configured to block or conduct power from the power supply circuit 120 supplied from the first power supply unit 100 to the incoming call detection unit 210 and the incoming call notification unit 220 according to a user's selection. The call notification selection unit 240 is provided.

The incoming notification selection unit 240 is for supplying power to the incoming detection unit 210 and the incoming notification unit 220 when the AC power provided to the first power supply unit 100 is cut off. A second power supply BAT, one terminal is connected between the second switch SW2 constituting the first switching unit 230 and the regulator 140, the other terminal is the second power supply BAT A third switch SW3 and a third switch SW3 for supplying power from the second power supply unit BAT to the incoming call detection unit 210 and the incoming call notification unit 220. It is connected between the input terminal of the regulator 140 has a first diode (D1) for preventing a reverse current.

The incoming detection unit 210 detects an electromagnetic wave generated when a call is made to the cellular phone, and an electromagnetic wave detection unit 212 for generating an electromagnetic wave detection signal, and compares the voltage level of the detection signal with a preset reference voltage level. A second switch for providing the incoming call detection signal to the incoming call notification unit 220 by performing a switching operation in response to the comparison signal, and outputting a comparison signal indicating the comparison result. Has a portion 216.

The electromagnetic wave detection unit 212 may include a first PCB (RB) connected between the PCB pattern antenna (PCB_ANT), the first PCB pattern antenna (PCB_ANT), and the ground for sensing electromagnetic waves induced when a telephone is received by the cellular phone. An anode is connected between the PCB pattern antenna PCB_ANT and the first resistor R1, and a second diode for detecting an electromagnetic wave detected by the PCB pattern antenna PCB_ANT and outputting the electromagnetic wave detection signal ( D2) and a third capacitor (C3) connected between the cathode of the second diode (D2) and ground to positive pressure the signal detected by the second diode (D2).

The comparison unit 214 may include second and third resistors R2 and R3 for dividing power from the first or second power supply unit 100 (BAT), and the first or second power supply unit 100, BAT) compares the voltage level of the electromagnetic wave detection signal inputted through the non-inverting terminal with the divided voltage level inputted through the inverting terminal in response to a power source from BAT), and amplifies and outputs the comparison signal according to the comparison result. And a fourth capacitor C4 and a fifth capacitor C5 connected between the output terminal of the comparison amplifier 214-1 and the non-inverting terminal.

The second switching unit 216 has an NPN type first transistor Q1 and a base terminal having an emitter terminal connected to ground and a base terminal performing a switching operation in response to a comparison signal from the comparison unit 214. Is connected to the collector terminal of the NPN type first transistor Q1, and the emitter terminal receives the power from the first or second power supply unit 100 (BAT) to perform a switching operation. (Q2), and a base terminal is connected to the collector terminal of the PNP type second transistor Q2, and an emitter terminal is connected to the ground to perform a switching operation to transmit the incoming call detection signal to the incoming call notification unit 220. NPN type third transistor Q3 for providing.

Bias fourth and fifth resistors R4 and R5 are connected to the base terminal of the NPN type first transistor Q1, and biasing sixth to the base and emitter terminals of the PNP type second transistor Q2. And seventh resistors R6 and R7 are connected, and eighth and ninth resistors R8 and R9 for bias are connected to the base terminal of the NPN type third transistor Q3.

In addition, one terminal of the sixth capacitor C6 for maintaining the voltage level is connected between the collector terminal of the NPN type first transistor Q1 and the base terminal of the PNP type second transistor Q2. The other terminal is grounded.

The incoming notification unit 220 receives power from the first or second power supply unit 100 (BAT), and responds to the incoming call detection signal provided from the incoming call detection unit 210 in response to the incoming call detection signal. The third switching unit 226 for outputting the power from the power supply unit 100 (BAT) and the power from the first or second power supply unit 100 (BAT) are received and provided from the incoming call detection unit 210. In response to the incoming call detection signal, the charging cradle 310 is driven to receive power from the driving unit 222 and the first or second power supply unit 100 (BAT) to notify the user that the telephone is received. A light emitting unit 224 for informing the user that a telephone is received by performing a light emitting operation in response to the incoming detection signal provided from the incoming call detecting unit 210, and the power output from the third switching unit 226. Respond to Contribute hayeoseo outputs a set melody sound it has a sound generating section 228 for notifying that a call is incoming to the user.

In this case, the third switching unit 226 receives an emitter terminal from the first or second power supply unit 100 (BAT), and the base terminal receives an incoming detection signal from the incoming detection unit 210. PNP-type fourth transistor Q4 and the PNP-type fourth transistor for receiving the input and outputting power from the first or second power supply unit 100 (BAT) to the sound generator 228 through a collector terminal. And a biasing tenth and eleventh resistors R10 and R11 connected between the base terminal of Q4 and the emitter terminal, and the incoming call detection unit 210.

The driving unit 222 receives the power B + from the first or second power supply unit 100 (BAT) through one input terminal, and receives the incoming detection signal through the other input terminal (M). And a third diode for protecting the motor M from back electromotive force by receiving a power source B + from the first or second power supply unit 100 (BAT) and an anode receiving the incoming detection signal. D3).

The light emitting unit 224 may include a twelfth resistor R12 for current control for receiving a power source B + from the first or second power supply unit 100 (BAT) from one terminal, and an twelfth resistor for the current control for the anode. It is connected to the other terminal of R12, the cathode has an LED (Light-emitting Device) for receiving the incoming detection signal from the incoming detection unit 210 to perform a light emitting operation.

The sound generator 228 has a melody IC 228-1 for outputting a melody control signal in response to the power B + output from the third switching unit 226, and an emitter terminal connected to ground. A NPN-type fifth transistor Q5 for receiving a melody control signal from a base terminal to perform a switching operation, and an input terminal receiving the power B + output from the third switching unit 226; Another input terminal is connected to the collector terminal of the NPN-type fifth transistor (Q5) to the speaker system 228-2 for outputting the predetermined melody sound to the user, and one terminal is the PNP-type fourth transistor ( It has the 7th capacitor C7 connected to the collector terminal of Q4), and the said speaker system 228-2, and the other terminal grounded.

In this configuration, the incoming call detection unit 210, the incoming call notification unit 220, the first switching unit 230, the incoming call notification selection unit 240 and the regulator 140 is a rabbit doll 300 shown in FIG. Built in a character goods, such as), the remaining part is configured separately from the rabbit doll 300 as a power supply adapter.

1 and 2 will be described in more detail the operation of the cellular phone charger having an incoming call notification function according to an embodiment of the present invention.

First, a case in which the AC power plug 110 is connected to the outlet and the user turns on the first and third switches SW1 and SW3 in order to use the incoming call notification function will be described.

The second switch when the user mounts the cellular phone to the charging cradle 310 of the rabbit doll 300 as shown in FIG. 2 while the AC power plug 110 is connected to the outlet. (SW2) is turned on.

Therefore, the power rectified by the power supply circuit 120 and regulated by the regulator 140 are output through the second switch SW2. At this time, since the first and third switches SW1 and SW3 are turned on, the second power supply unit BAT is also turned on.

However, since the voltage drop is generated by the first diode D1, the power from the second power supply BAT is supplied from the regulator 140 having a relatively high voltage level. It is output through SW2).

In this state, when a call is made to the cellular phone mounted on the charging cradle 310 from the outside, the PCB pattern antenna PCB_ANT detects electromagnetic waves generated when the telephone is received and outputs the electromagnetic wave detection signal. .

The detected electromagnetic wave detection signal is detected by the second diode D2 and input to the non-inverting terminal (+) of the comparison amplifier 214-1. The inverting terminal (−) of the comparison amplifier 214-1 receives power from the regulator 140 divided by the second and third resistors R2 and R3.

The comparison amplifier 214-1 compares the voltage level of the electromagnetic wave detection signal input through the non-inverting terminal (+) with the voltage level of the divided power source input through the inverting terminal (−). The comparison amplifier 214-1 amplifies the difference between the voltage level of the electromagnetic wave detection signal and the voltage level of the divided power source set to a reference level and outputs the difference as the comparison signal.

When the comparison signal exceeds a predetermined value and is output as a high level signal, the NPN type first transistor Q1 is turned on. Therefore, the PNP type second transistor Q2 is turned on while the base voltage of the PNP type second transistor Q2 drops to a low level.

When the PNP type second transistor Q2 is turned on, the power source B + applied to the emitter terminal of the PNP type second transistor Q2 is applied to the base terminal of the NPN type third transistor Q3. The NPN type third transistor Q3 is turned on.

As such, when the first, second, and third transistors Q1, Q2, and Q3 of the second switching unit 216 are sequentially turned on, the PNP type fourth transistor Q4 of the third switching unit 226 is turned on. The voltage level of the base terminal of the ()) is lowered to the low level, so that the PNP type fourth transistor Q4 is turned on.

When the PNP-type fourth transistor Q4 is turned on, the power B + input through the emitter terminal of the PNP-type fourth transistor Q4 is outputted to the collector terminal, so that the melody IC 228-1 and It is applied to one input terminal of the speaker system 228-2.

In response to the power supply B + applied through the collector terminal of the PNP type fourth transistor Q4, the melody IC 228-1 transmits a melody control signal having a high level potential to the NPN type fifth transistor ( Output to the base terminal of Q5).

The NPN fifth transistor Q5 is turned on by the melody control signal from the melody IC 228-1 applied through a base terminal, and the other input terminal of the speaker system 228-2 is grounded. Will have a potential. Therefore, the speaker system 228-2 outputs a predetermined melody sound for notifying the user that a call has been made.

On the other hand, as the potential of the collector terminal of the NPN type third transistor Q3 drops to a low level, the motor M of the driving unit 222 and the LED of the light emitting unit 224 are also conducted together.

Therefore, while the melody sound is output from the speaker system 228-2, the rabbit doll 300 shown in FIG. 2 is driven by the driving of the motor M, and the LED emits light. By performing an operation, the user is notified that a call has been received.

The case where the AC power plug 110 is not connected to the outlet and the above-mentioned incoming call notification function is selected by the user will now be described.

Even when the first and third switches SW1 and SW3 are turned on by the user, no power is output from the regulator 140 unless the AC power plug 110 is connected to the outlet.

However, since the first and third switches SW1 and SW3 are turned on, the second power supply unit includes the second switch SW2 turned on by the cellular phone mounted on the charging cradle 310. Power from BAT).

Subsequent operation of the incoming call notification function is performed in the same manner as when external power is input through the AC power plug 110. Therefore, even if the AC power plug 110 is not connected to the outlet due to the user's mistake or any other cause, the first and third switches SW1 and SW3 are turned on by the user's selection. Incoming notification function is performed.

If the user does not want to select the incoming call notification function of the cellular phone charger as described above, it is sufficient to turn off the first and third switches SW1 and SW3.

This is because both the power supply from the first power supply unit 100 and the second power supply unit BAT are cut off and are not provided to the second switch SW2 side.

The cellular phone mounted on the charging cradle 310 is connected to the front end of the first switch SW1 even when all of the power provided by the second switch SW2 is cut off. It can be charged by the power provided from the power supply circuit 120 through.

According to the cellular phone charger having the incoming call notification function as described above, the remaining circuit portion other than the power supply circuit of the charger is embedded in the character goods such as rabbit doll, and the charging cradle for the cellular phone is also installed in the character goods.

Then, the telephone receiver detects an incoming call from the outside through an incoming call detection unit for detecting electromagnetic waves, and correspondingly, the rabbit doll is driven through the incoming call notification unit having a motor, a light emitting element, and a speaker system. Inform.

Therefore, the user can easily recognize the incoming call through sight and hearing simply by mounting the cellular phone on the charging cradle.

Although described above with reference to a preferred embodiment of the present invention, those skilled in the art various modifications of the present invention without departing from the spirit and scope of the present invention described in the utility model registration claims below And can be changed.

Claims (14)

First power supply means for supplying power; Incoming call detection means for detecting incoming call to the cellular phone and outputting an incoming call detection signal; Incoming call notification means for receiving power from the first power supply means and notifying a user that a call has been received in response to the incoming call detection signal; And And a first switching means for performing a switching operation to provide power from the first power supply means to the incoming call detection means and the incoming call notification means when the cellular phone is mounted on the charging cradle by the user. Cellular phone charger with incoming call notification function. According to claim 1, wherein the incoming call detection means, Electromagnetic wave detection means for generating an electromagnetic wave detection signal by detecting an electromagnetic wave generated when a telephone call is made to the cellular phone; Comparison means for comparing the voltage level of the detection signal with a preset reference voltage level and outputting a comparison signal indicating the comparison result; And And a second switching means for providing a call detection signal to the call notification means by performing a switching operation in response to the comparison signal. The method of claim 2, wherein the electromagnetic wave detection means, A PCB pattern antenna for sensing electromagnetic waves induced when a telephone is called to the cellular phone; A first diode connected between an anode and the ground of the PCB pattern antenna, and configured to detect an electromagnetic wave detected by the PCB pattern antenna and output the electromagnetic wave detection signal; And And a first condenser connected between the cathode of the first diode and the ground to positive pressure the signal detected by the first diode. The method of claim 2, wherein the comparison means, Voltage dividing means for dividing power from the first power supply means; And In response to the power from the first power supply means, the voltage level of the electromagnetic wave detection signal input through the non-inverting terminal and the voltage level divided by the voltage dividing means input through the inverting terminal are compared, and the comparison result is compared. And a comparison amplification means for amplifying and outputting the comparison signal. The method of claim 2, wherein the second switching means, An NPN type first transistor having an emitter terminal connected to ground and a base terminal performing a switching operation in response to a comparison signal from the comparing means; A PNP type second transistor having a base terminal connected to a collector terminal of the NPN type first transistor, and an emitter terminal receiving power from the first power supply means to perform a switching operation; And A base terminal connected to the collector terminal of the second PNP type transistor, an emitter terminal connected to the ground, and performing a switching operation to include the NPN type third transistor for providing the incoming call detection signal to the incoming call notification means; A cellular phone charger having an incoming call notification function. According to claim 1, The call notification means, Third switching means for receiving power from said first power supply means and outputting power from said first power supply means in response to said incoming detection signal provided from said incoming detection means; Drive means for receiving the power from the first power supply means and driving the charging cradle in response to the incoming detection signal provided from the incoming detection means to notify the user that a telephone is received; Light emitting means for receiving power from a first power supply means and notifying the user that a telephone is received by performing a light emitting operation in response to the incoming detection signal provided from the incoming detection means; And a sound generating means for notifying the user that a call has been received by outputting a predetermined melody sound in response to the power output from the third switching means. The method of claim 6, wherein the third switching means, The emitter terminal receives the power from the first power supply means, the base terminal receives the incoming detection signal from the incoming detection means, and generates power from the first power supply means through the collector terminal. A PNP type fourth transistor for outputting by means; A first bias resistor connected between the base terminal of the fourth transistor and the incoming detection means; And And a second bias resistor coupled between the emitter terminal and the base terminal of the fourth transistor. The method of claim 6, wherein the drive means, A motor which receives power from the first power supply means through one input terminal and receives the incoming call detection signal through another input terminal; And And a second diode for receiving a power input from the first power supply means and an anode receiving the incoming detection signal to protect the motor. 2. The method of claim 6, wherein the light emitting means, A resistor for controlling current for one terminal to receive power from the first power supply means; An anode is connected to the other terminal of the current control resistor, and the cathode comprises an LED for receiving the incoming detection signal from the incoming detection means for performing a light emitting operation, the cellular phone charger having a call notification function. The method of claim 6, wherein the sound generating means, A melody IC for outputting a melody control signal in response to the power output from the third switching means; An NPN-type fifth transistor having an emitter terminal connected to ground and a base terminal receiving the melody control signal to perform a switching operation; And A speaker system for receiving an input of the power output from the third switching means, the other input terminal being connected to the collector terminal of the NPN type fifth transistor, and outputting the predetermined melody sound to the user; Cell phone charger having an incoming call notification, characterized in that. The method of claim 1, wherein the first power supply means, A power supply circuit for rectifying the AC power and outputting the DC power; A regulator for regulating the DC power output from the power supply circuit and outputting it to the first switching means; And And a plug connected to an output of the power supply circuit to provide a power supply for charging the cellular phone. 12. The call reception apparatus according to claim 11, further comprising a call notification selecting means for cutting off or conducting power supplied from the first power supply means to the call detection means and the call notification means according to the user's selection. Cell phone charger with notification function. The method of claim 12, wherein the call notification selection means, Second power supply means for supplying power to the incoming call detection means and the incoming call notification means when the AC power provided to the first power supply means is cut off; And One terminal is connected between the first switching means and the first power supply means, and the other terminal is connected to the second power supply means to supply power from the second power supply means under the control of the user. And a first switch for providing the incoming call detection means and the incoming call notification means. The method of claim 13, wherein the first power supply means further comprises a second switch connected between the power supply circuit and the regulator to perform an on / off operation in conjunction with the first switch. Cell phone charger with incoming call notification.